Category Archives: Lunar Orbiters

Friday / 6 Jan 2022

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Korea Pathfinder Lunar Orbiter Danuri Sending Awesome Earthrise Images Home While Preparing for Science Operations

From a 100-km circular polar orbit around the Moon, Danuri has an excellent vantage of Earth rising over the lunarscape which KARI team is observing with Lunar Terrain Imager (LUTI), 1 of 6 science payloads to be used for 1-year nominal science mission commencing February; KMAG (KPLO Magnetometer), Wide-Angle Polarimetric Camera (PolCam), KPLO Gamma-Ray Spectrometer (KGRS), Disruption Tolerant Network Experiment Payload (DTNPL) also developed by KARI; ShadowCam built by ASU for NASA, based on Narrow Angle Camera components of LROC on LRO with 200x sensitivity

Credits: KARI

New Year Holiday Edition
Fri-Mon / 23 Dec 2022 – 2 Jan 2023

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2023 Moon Roster Full of Independent and National Touchdowns Following 2022 Orbital Activity

At least 6 attempts to robotically land on the lunar surface are slated for 2023, after a year that saw Capstone DRHO insertion, Danuri near 100 x 100 km desired polar orbit (refining current 109 x 8920 km via 4 additional orbital maneuvers), Artemis 1 flyby / DRO; Hakuto launched on Dec 11 as Orion splashed down, now on 1-month cruise to next TCM targeting April landing; Landers Nova-C and Peregrine launching NET Q1, SLIM April, Chandrayaan-3 June, Luna-25 July, while Chang’E-3 lander / LUT, Chang’E-4 Yutu-2 rover continue only current operations on Moon

Credits: NASA, ispace, IM, Astrobotic, ISRO

Weekend Edition
Fri-Mon / 16-19 Dec 2022

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KPLO ‘Danuri’ Begins Lunar Orbit Insertion Process, Joining Capstone, Artemis 1 CubeSats, Chandrayaan-2, ARTEMIS-P1 / P2, LRO

Cislunar spacecraft are now joined by 678-kg wet / 418-kg dry Korea Pathfinder Lunar Orbiter Danuri following first orbital insertion burn and near 100-km perilune 16 Dec at ~17:53 UTC (17 Dec 02:52 KST); 4 lunar orbit insertion maneuvers over the next 12 days are to deliver Danuri to a 100 x 100km polar (90°) inclination orbit where it will circle Luna 12x per Earth-day utilizing 6 science payloads including ASU ShadowCam for nominal 1-year on-orbit mission duration; 35-m Korea Deep Space Antenna in Yeoju, S. Korea providing tracking and comms

Credits: KARI

Friday / 2 Dec 2022

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Artemis 1 Orion Spacecraft Departing Lunar Distant Retrograde Orbit for Moon Flyby, Earth Return and Reentry

Orion headed back toward Moon following 105-second main engine trajectory maneuver, a 4-day leg of Artemis 1 journey which has seen the furthest travel of any human-rated vessel (aside from Apollo 10 ascent module in heliocentric disposal orbit) at 432,210-km from Earth; Final powered lunar flyby set to occur at 8:43 PST on 5 Dec, sending Orion on a 6-day trip towards Earth; 11 Dec reentry at 9:40 to be fastest (39,429 kph / Mach 32) and hottest (2,760°C) to date, first to employ ‘skip’ technique allowing precision splashdown and lowered g-forces

 Credits: NASA

Tuesday / 29 Nov 2022

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Japan Focuses on Moon with OMOTENASHI and EQUULEUS in Cislunar Space, ispace M1 Launching to Luna Surface

Despite 6U CubeSat OMOTENASHI ‘semi-hard impact’ failure, JAXA team led by Tatsuaki Hashimoto still working to reestablish communications and carry out testing in lunar orbit around March, at which time solar panels will be oriented towards Sun; Meanwhile fellow Artemis rideshare EQUULEUS, powered by 6-water thruster AQUARIUS propulsion system, on 18-month route to Earth-Moon L2 following 5,550-km lunar flyby / imaging; ispace expected to launch Hakuto-R lander via SpaceX F9 on Nov 30 with landing within Mare Frigoris (56°N, 1.4°E) in April-May 2023

 Credits: NASA, JAXA

Thanksgiving Holiday Edition
Wed-Mon / 23-28 Nov 2022

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8 International Lunar Missions May Follow Artemis 1, Capstone, Danuri in Remainder of 2022 and 2023

As Artemis Orion spacecraft occupies cislunar distant retrograde orbit (130 x 64,000 km) with splashdown expected 11 Dec, NASA Capstone tests cislunar near rectilinear halo orbit (1,600 x 70,000 km) and KARI Danuri on course to reach 100km lunar orbit 16 Dec, numerous global efforts work to follow with ispace M1 launching NET 29 Nov 2022; Throughout 2023: Astrobotic Peregrine Mission One NET Q1, Intuitive Machines IM-1 NET March, JAXA SLIM NET April, ISRO Chandrayaan-3 NET June, Roscosmos Luna-25 NET July; IM-2 and Turkish Space Agency AYAP-1 aim for late 2023

Credits: NASA, KARI, Astrobotic, IM, JAXA, ISRO, TSA

Weekend Edition
Fri-Mon / 18-21 Nov 2022

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Cislunar R&D: Antarctica Peace Treaty May Serve as Model for International Cislunar Activity

Peaceful use norms regulated by Antarctic Treaty Secretariat in Buenos Aires, Argentina may be useful example as Cislunar Technology Strategy Interagency Working Group of USA OSTP predicts human activity in cislunar space over coming decade ≥ all previous since 1957, issues 4 main guidelines in National Cislunar S&T Strategy: support for long-term growth, international cooperation, space situational awareness and comms / PNT; JHAPL issues advice for Cislunar Security; AFRL Cislunar Highway Patrol Satellite now ‘Oracle’ to be operated by Advanced Space near Earth-Moon L1 under US$72M contract

Pictured: (Clockwise) OSTP Director Arati Prabhakar, Assistant Director Matthew Daniels, Policy Fellow Kathrine Bretl, Acting Executive Director Kei Koizumi; Credits: OSTP, NASA, LinkedIn, Antarctic Treaty Secretariat

Tuesday / 15 Nov 2022

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NASA Moon Flagship Artemis 1 Ready for Inaugural Launch to Lunar Orbit and Secondary Payload Deep Space Delivery

Weather forecast estimated at 90% favorable for 2-hour window set to begin on 16 Nov 01:04 EST for launch of Artemis 1 mission from historic KSC Launch Pad 39B; Live broadcast to begin with SLS core stage fueling with Launch Control Center commentary at 15:30 on 15 Nov followed by launch coverage starting at 10:30, continuing through SRB (~T+2 minutes), core stage (T+8 minutes) and upper (Interim Cryogenic Propulsion) stage separation and TLI; Post-launch news conference with mission team scheduled for 04:00 16 Nov

Pictured: (Clockwise) NASA Administrator Bill Nelson, Artemis Mission Manager Michael Sarafin, JSC Flight Director Emily Nelson, Orion Program Manager Howard Hu, SLS Program Manager John Honeycutt, Exploration Ground Systems Program Manager Mike Bolger; Credits: NASA, LinkedIn, ULA

Weekend Edition
Fri-Mon / 4-7 Nov 2022

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Rocket Lab Solar Panels to be Integrated on Artemis Lunar Gateway PPE by Maxar as Thales Alenia Welds HALO Module

Panels of 30% efficienct Z4J multi-junction solar cells made by Rocket Lab subsidiary SolAero Technologies (Albuquerque NM) under contract for Maxar Technologies, builder of Lunar Gateway Power and Propulsion Element; Redwire subsidiary Deployable Space Systems (Goleta CA) to integrate panels into PPE Roll Out Solar Array, providing ~70 kW to power 6 kW Hall-effect ion thrusters made by Busek (Natick MA); PPE to launch with Cygnus-based Habitation and Habitation and Logistics Outpost (HALO) NET Nov 2024, forming core of cislunar space station; HALO being fabricated by Thales Alenia in Turin, Italy for Northrop Grumman

Credits: Rocket Lab, NASA, Northrop Grumman, Thales Alenia

Tuesday / 1 Nov 2022

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Lunar Flashlight to Prospect for Water on Moon, Launch with ispace Mission-1 NET 22 November

Utilizing 4 shortwave IR lasers (1.064, 1.495, 1.85, 1.99 μm) and indium gallium arsenide spectrometer, 6U / 14kg Lunar Flashlight 2-month nominal cubesat mission led by PI Barbara Cohen of NASA GSFC to search for water ice hidden within permanently shadowed regions on Moon from 15 x 70,000 km elliptical near-rectilinear polar orbit with ~6 day period; Lunar Flashlight now launching with Hakuto-R M1, which has arrived at KSC for launch on SpaceX F9 NET 22 Nov carrying UAE Rashid rover, Canadensys-built 360° cameras, JAXA spheroid robot

Credits: NASA, ispace, Wikipedia